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Add tests for the long double version of ecvt and fcvt
The test case misc/tst-efgcvt.c only tests the double variants of the Old-fashioned System V number-to-string functions: ecvt, fcvt, and their re-entrant counterparts. With a few macros, the code can be reused for the long double versions of these functions. A future patch will reuse it again for IEEE long double on powerpc64le. Tested for powerpc and powerpc64le.
This commit is contained in:
Gabriel F. T. Gomes
parent
268bb71e47
commit
bd51ff5ed0
16
ChangeLog
16
ChangeLog
@ -1,3 +1,19 @@
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2018-12-14 Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
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* misc/Makefile (tests): Remove tst-efgcvt. Add tst-dbl-efgcvt
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and tst-ldbl-efgcvt.
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* misc/tst-efgcvt.c: Renamed to misc/tst-efgcvt-template.c.
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* misc/tst-efgcvt-template.c: Renamed from misc/tst-efgcvt.c.
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(struct testcase, efcvt_func, efcvt_r_func, ecvt_tests)
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(fcvt_tests, output_error, output_r_error, do_test): Use the
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macros defined in tst-dbl-efgcvt.c and tst-ldbl-efgcvt.c to:
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select the type of floating-point variables and arguments; to
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produce extra tests for double and conversion specifiers for
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printf; and to set the names of called functions.
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* misc/tst-dbl-efgcvt.c: New file that defines the macros used
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in tst-efgcvt-template.c.
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* misc/tst-ldbl-efgcvt.c: Likewise.
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2018-12-14 Stefan Liebler <stli@linux.ibm.com>
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* nss/Makefile (tst-nss-test3.out): New rule.
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@ -80,12 +80,12 @@ aux := init-misc
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install-lib := libg.a
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gpl2lgpl := error.c error.h
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tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt tst-mntent tst-hsearch \
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tests := tst-dirname tst-tsearch tst-fdset tst-mntent tst-hsearch \
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tst-error1 tst-pselect tst-insremque tst-mntent2 bug-hsearch1 \
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tst-mntent-blank-corrupt tst-mntent-blank-passno bug18240 \
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tst-preadvwritev tst-preadvwritev64 tst-makedev tst-empty \
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tst-preadvwritev2 tst-preadvwritev64v2 tst-warn-wide \
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tst-ldbl-warn tst-ldbl-error
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tst-ldbl-warn tst-ldbl-error tst-dbl-efgcvt tst-ldbl-efgcvt
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# Tests which need libdl.
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ifeq (yes,$(build-shared))
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36
misc/tst-dbl-efgcvt.c
Normal file
36
misc/tst-dbl-efgcvt.c
Normal file
@ -0,0 +1,36 @@
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/* Tests for *cvt function, double version.
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Copyright (C) 1998-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <float.h>
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#define ECVT ecvt
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#define FCVT fcvt
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#define ECVT_R ecvt_r
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#define FCVT_R fcvt_r
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#define FLOAT double
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#define PRINTF_CONVERSION "%f"
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#if DBL_MANT_DIG == 53
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# define EXTRA_ECVT_TESTS \
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{ 0x1p-1074, 3, -323, "494" }, \
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{ -0x1p-1074, 3, -323, "494" },
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#else
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# define EXTRA_ECVT_TESTS
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#endif
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#include <tst-efgcvt-template.c>
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@ -15,11 +15,29 @@
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* This template provides testing for the *cvt family of functions,
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which deal with double or long double types. In order to use the
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template, the following macros must be defined before inclusion of
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this template:
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FLOAT: The floating-point type, i.e. double or long double.
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ECVT: Appropriate *ecvt function for FLOAT, i.e. ecvt or qecvt.
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FCVT: Likewise for *fcvt, i.e. fcvt or qfcvt.
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ECVT_R: Likewise for *ecvt_r, i.e. ecvt_r or qecvt_r.
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FCVT_R: Likewise for *fcvt_r, i.e. fcvt_r or qfcvt_r.
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PRINTF_CONVERSION: The appropriate printf conversion specifier with
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length modifier for FLOAT, i.e. "%f" or "%Lf".
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EXTRA_ECVT_TESTS: Additional tests for the ecvt or qecvt function
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that are only relevant to a particular floating-point type and
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cannot be represented generically. */
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE 1
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#endif
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#include <float.h>
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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@ -27,17 +45,20 @@
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#include <support/check.h>
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#define NAME(x) NAMEX(x)
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#define NAMEX(x) #x
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typedef struct
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{
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double value;
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FLOAT value;
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int ndigit;
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int decpt;
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char result[30];
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} testcase;
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typedef char * ((*efcvt_func) (double, int, int *, int *));
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typedef char * ((*efcvt_func) (FLOAT, int, int *, int *));
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typedef int ((*efcvt_r_func) (double, int, int *, int *, char *, size_t));
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typedef int ((*efcvt_r_func) (FLOAT, int, int *, int *, char *, size_t));
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static testcase ecvt_tests[] =
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@ -59,10 +80,7 @@ static testcase ecvt_tests[] =
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{ 123.01, -4, 3, "" },
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{ 126.71, -4, 3, "" },
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{ 0.0, 4, 1, "0000" },
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#if DBL_MANT_DIG == 53
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{ 0x1p-1074, 3, -323, "494" },
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{ -0x1p-1074, 3, -323, "494" },
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#endif
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EXTRA_ECVT_TESTS
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/* -1.0 is end marker. */
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{ -1.0, 0, 0, "" }
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};
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@ -91,11 +109,12 @@ static testcase fcvt_tests[] =
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};
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static void
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output_error (const char *name, double value, int ndigit,
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output_error (const char *name, FLOAT value, int ndigit,
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const char *exp_p, int exp_decpt, int exp_sign,
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char *res_p, int res_decpt, int res_sign)
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{
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printf ("%s returned wrong result for value: %f, ndigits: %d\n",
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printf ("%s returned wrong result for value: " PRINTF_CONVERSION
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", ndigits: %d\n",
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name, value, ndigit);
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printf ("Result was p: \"%s\", decpt: %d, sign: %d\n",
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res_p, res_decpt, res_sign);
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@ -106,11 +125,12 @@ output_error (const char *name, double value, int ndigit,
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static void
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output_r_error (const char *name, double value, int ndigit,
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output_r_error (const char *name, FLOAT value, int ndigit,
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const char *exp_p, int exp_decpt, int exp_sign, int exp_return,
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char *res_p, int res_decpt, int res_sign, int res_return)
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{
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printf ("%s returned wrong result for value: %f, ndigits: %d\n",
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printf ("%s returned wrong result for value: " PRINTF_CONVERSION
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", ndigits: %d\n",
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name, value, ndigit);
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printf ("Result was buf: \"%s\", decpt: %d, sign: %d return value: %d\n",
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res_p, res_decpt, res_sign, res_return);
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@ -171,30 +191,30 @@ special (void)
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char *p;
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char buf [1024];
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p = ecvt (NAN, 10, &decpt, &sign);
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p = ECVT (NAN, 10, &decpt, &sign);
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if (sign != 0 || strcmp (p, "nan") != 0)
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output_error ("ecvt", NAN, 10, "nan", 0, 0, p, decpt, sign);
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output_error (NAME (ECVT), NAN, 10, "nan", 0, 0, p, decpt, sign);
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p = ecvt (INFINITY, 10, &decpt, &sign);
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p = ECVT (INFINITY, 10, &decpt, &sign);
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if (sign != 0 || strcmp (p, "inf") != 0)
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output_error ("ecvt", INFINITY, 10, "inf", 0, 0, p, decpt, sign);
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output_error (NAME (ECVT), INFINITY, 10, "inf", 0, 0, p, decpt, sign);
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/* Simply make sure these calls with large NDIGITs don't crash. */
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(void) ecvt (123.456, 10000, &decpt, &sign);
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(void) fcvt (123.456, 10000, &decpt, &sign);
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(void) ECVT (123.456, 10000, &decpt, &sign);
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(void) FCVT (123.456, 10000, &decpt, &sign);
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/* Some tests for the reentrant functions. */
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/* Use a too small buffer. */
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res = ecvt_r (123.456, 10, &decpt, &sign, buf, 1);
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res = ECVT_R (123.456, 10, &decpt, &sign, buf, 1);
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if (res == 0)
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{
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printf ("ecvt_r with a too small buffer was succesful.\n");
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printf (NAME (ECVT_R) " with a too small buffer was succesful.\n");
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support_record_failure ();
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}
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res = fcvt_r (123.456, 10, &decpt, &sign, buf, 1);
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res = FCVT_R (123.456, 10, &decpt, &sign, buf, 1);
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if (res == 0)
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{
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printf ("fcvt_r with a too small buffer was succesful.\n");
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printf (NAME (FCVT_R) " with a too small buffer was succesful.\n");
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support_record_failure ();
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}
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}
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@ -203,10 +223,10 @@ special (void)
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static int
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do_test (void)
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{
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test (ecvt_tests, ecvt, "ecvt");
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test (fcvt_tests, fcvt, "fcvt");
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test_r (ecvt_tests, ecvt_r, "ecvt_r");
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test_r (fcvt_tests, fcvt_r, "fcvt_r");
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test (ecvt_tests, ECVT, NAME (ECVT));
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test (fcvt_tests, FCVT, NAME (FCVT));
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test_r (ecvt_tests, ECVT_R, NAME (ECVT_R));
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test_r (fcvt_tests, FCVT_R, NAME (FCVT_R));
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special ();
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return 0;
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28
misc/tst-ldbl-efgcvt.c
Normal file
28
misc/tst-ldbl-efgcvt.c
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@ -0,0 +1,28 @@
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/* Tests for *cvt function, long double version.
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Copyright (C) 1998-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define ECVT qecvt
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#define FCVT qfcvt
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#define ECVT_R qecvt_r
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#define FCVT_R qfcvt_r
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#define FLOAT long double
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#define PRINTF_CONVERSION "%Lf"
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#define EXTRA_ECVT_TESTS
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#include <tst-efgcvt-template.c>
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